'待快递下单', 'WaitExpAccept' => '待快递接单', 'ExpAccepted' => '快递已接单', 'ExpCanceled' => '快递已取消订单', 'CustomerServiceConfirmed' => '客服已确认', 'WaitServerComfrim' => '待客服确认', 'TicketTimeoutClose' => '工单超时关闭', ]; public static function label(?string $code): string { $code = trim((string) $code); if ($code === '') { return ''; } return self::LABELS[$code] ?? $code; } }